./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-wmm/safe019_pso.oepc_pso.opt_tso.oepc_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/pthread-wmm/safe019_pso.oepc_pso.opt_tso.oepc_tso.opt.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4633300b13c3e317f8d3cd1cc05f3f76ba271ffedabaa8599cd9617354fa2b7b --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 03:21:24,055 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 03:21:24,157 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-17 03:21:24,163 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 03:21:24,165 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 03:21:24,194 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 03:21:24,195 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 03:21:24,195 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 03:21:24,196 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 03:21:24,196 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 03:21:24,196 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-17 03:21:24,196 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-17 03:21:24,197 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 03:21:24,201 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 03:21:24,201 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 03:21:24,202 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 03:21:24,202 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 03:21:24,202 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 03:21:24,202 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 03:21:24,203 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 03:21:24,203 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-17 03:21:24,208 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-17 03:21:24,208 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-17 03:21:24,208 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-17 03:21:24,208 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-17 03:21:24,209 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 03:21:24,209 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 03:21:24,209 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 03:21:24,209 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 03:21:24,210 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 03:21:24,210 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 03:21:24,210 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-17 03:21:24,210 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-17 03:21:24,211 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 03:21:24,211 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 03:21:24,211 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-17 03:21:24,212 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 03:21:24,212 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-17 03:21:24,212 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-17 03:21:24,213 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-17 03:21:24,213 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-17 03:21:24,214 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-17 03:21:24,214 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4633300b13c3e317f8d3cd1cc05f3f76ba271ffedabaa8599cd9617354fa2b7b [2024-11-17 03:21:24,459 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 03:21:24,489 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 03:21:24,494 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 03:21:24,495 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 03:21:24,496 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 03:21:24,497 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe019_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-11-17 03:21:25,972 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 03:21:26,219 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 03:21:26,221 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe019_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-11-17 03:21:26,241 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3aedd3fb/0a7f0527067b4a96b5d051b09384caff/FLAG0a751875f [2024-11-17 03:21:26,257 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3aedd3fb/0a7f0527067b4a96b5d051b09384caff [2024-11-17 03:21:26,262 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 03:21:26,263 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 03:21:26,266 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 03:21:26,266 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 03:21:26,272 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 03:21:26,273 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:21:26" (1/1) ... [2024-11-17 03:21:26,274 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c95c8ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:21:26, skipping insertion in model container [2024-11-17 03:21:26,274 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:21:26" (1/1) ... [2024-11-17 03:21:26,324 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 03:21:26,738 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 03:21:26,755 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 03:21:26,815 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 03:21:26,902 INFO L204 MainTranslator]: Completed translation [2024-11-17 03:21:26,903 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:21:26 WrapperNode [2024-11-17 03:21:26,903 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 03:21:26,904 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 03:21:26,904 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 03:21:26,904 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 03:21:26,912 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:21:26" (1/1) ... [2024-11-17 03:21:26,928 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:21:26" (1/1) ... [2024-11-17 03:21:26,948 INFO L138 Inliner]: procedures = 176, calls = 47, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 67 [2024-11-17 03:21:26,949 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 03:21:26,949 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 03:21:26,950 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 03:21:26,950 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 03:21:26,959 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:21:26" (1/1) ... [2024-11-17 03:21:26,959 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:21:26" (1/1) ... [2024-11-17 03:21:26,962 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:21:26" (1/1) ... [2024-11-17 03:21:26,995 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-17 03:21:26,995 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:21:26" (1/1) ... [2024-11-17 03:21:26,995 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:21:26" (1/1) ... [2024-11-17 03:21:27,001 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:21:26" (1/1) ... [2024-11-17 03:21:27,005 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:21:26" (1/1) ... [2024-11-17 03:21:27,007 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:21:26" (1/1) ... [2024-11-17 03:21:27,011 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:21:26" (1/1) ... [2024-11-17 03:21:27,013 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 03:21:27,014 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 03:21:27,018 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 03:21:27,018 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 03:21:27,019 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:21:26" (1/1) ... [2024-11-17 03:21:27,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 03:21:27,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 03:21:27,054 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-17 03:21:27,060 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-17 03:21:27,107 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-17 03:21:27,107 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 03:21:27,107 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-17 03:21:27,108 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-17 03:21:27,108 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-17 03:21:27,108 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-17 03:21:27,108 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-17 03:21:27,108 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-17 03:21:27,108 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-11-17 03:21:27,109 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-11-17 03:21:27,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-17 03:21:27,110 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-17 03:21:27,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 03:21:27,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 03:21:27,112 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-17 03:21:27,228 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 03:21:27,231 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 03:21:27,408 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-17 03:21:27,408 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 03:21:27,507 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 03:21:27,507 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 03:21:27,507 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 03:21:27 BoogieIcfgContainer [2024-11-17 03:21:27,508 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 03:21:27,511 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-17 03:21:27,511 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-17 03:21:27,516 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-17 03:21:27,516 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 03:21:26" (1/3) ... [2024-11-17 03:21:27,518 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@440fe0a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:21:27, skipping insertion in model container [2024-11-17 03:21:27,518 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:21:26" (2/3) ... [2024-11-17 03:21:27,520 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@440fe0a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:21:27, skipping insertion in model container [2024-11-17 03:21:27,520 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 03:21:27" (3/3) ... [2024-11-17 03:21:27,522 INFO L112 eAbstractionObserver]: Analyzing ICFG safe019_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-11-17 03:21:27,536 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-17 03:21:27,536 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-17 03:21:27,537 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-17 03:21:27,595 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-17 03:21:27,640 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 61 places, 50 transitions, 116 flow [2024-11-17 03:21:27,683 INFO L124 PetriNetUnfolderBase]: 2/46 cut-off events. [2024-11-17 03:21:27,684 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 03:21:27,689 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59 conditions, 46 events. 2/46 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 82 event pairs, 0 based on Foata normal form. 0/42 useless extension candidates. Maximal degree in co-relation 50. Up to 2 conditions per place. [2024-11-17 03:21:27,689 INFO L82 GeneralOperation]: Start removeDead. Operand has 61 places, 50 transitions, 116 flow [2024-11-17 03:21:27,692 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 56 places, 45 transitions, 102 flow [2024-11-17 03:21:27,700 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 03:21:27,707 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@26626b0c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 03:21:27,707 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-17 03:21:27,723 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-17 03:21:27,723 INFO L124 PetriNetUnfolderBase]: 2/43 cut-off events. [2024-11-17 03:21:27,723 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 03:21:27,724 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:21:27,724 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:21:27,725 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-17 03:21:27,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:21:27,733 INFO L85 PathProgramCache]: Analyzing trace with hash -1470839270, now seen corresponding path program 1 times [2024-11-17 03:21:27,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:21:27,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728971971] [2024-11-17 03:21:27,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:21:27,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:21:27,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:21:28,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:21:28,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:21:28,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728971971] [2024-11-17 03:21:28,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728971971] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:21:28,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:21:28,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-17 03:21:28,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197100521] [2024-11-17 03:21:28,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:21:28,069 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 03:21:28,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:21:28,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 03:21:28,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 03:21:28,122 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 50 [2024-11-17 03:21:28,125 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 45 transitions, 102 flow. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:21:28,125 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:21:28,125 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 50 [2024-11-17 03:21:28,126 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:21:31,247 INFO L124 PetriNetUnfolderBase]: 26557/37849 cut-off events. [2024-11-17 03:21:31,247 INFO L125 PetriNetUnfolderBase]: For 178/178 co-relation queries the response was YES. [2024-11-17 03:21:31,342 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73379 conditions, 37849 events. 26557/37849 cut-off events. For 178/178 co-relation queries the response was YES. Maximal size of possible extension queue 1281. Compared 243331 event pairs, 26557 based on Foata normal form. 2700/40458 useless extension candidates. Maximal degree in co-relation 73367. Up to 35090 conditions per place. [2024-11-17 03:21:31,512 INFO L140 encePairwiseOnDemand]: 46/50 looper letters, 32 selfloop transitions, 1 changer transitions 1/41 dead transitions. [2024-11-17 03:21:31,512 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 41 transitions, 162 flow [2024-11-17 03:21:31,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 03:21:31,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-17 03:21:31,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 70 transitions. [2024-11-17 03:21:31,524 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4666666666666667 [2024-11-17 03:21:31,526 INFO L175 Difference]: Start difference. First operand has 56 places, 45 transitions, 102 flow. Second operand 3 states and 70 transitions. [2024-11-17 03:21:31,527 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 41 transitions, 162 flow [2024-11-17 03:21:31,536 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 41 transitions, 158 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-17 03:21:31,541 INFO L231 Difference]: Finished difference. Result has 52 places, 40 transitions, 90 flow [2024-11-17 03:21:31,543 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=90, PETRI_PLACES=52, PETRI_TRANSITIONS=40} [2024-11-17 03:21:31,548 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, -4 predicate places. [2024-11-17 03:21:31,550 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 40 transitions, 90 flow [2024-11-17 03:21:31,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:21:31,551 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:21:31,551 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:21:31,551 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-17 03:21:31,551 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-17 03:21:31,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:21:31,553 INFO L85 PathProgramCache]: Analyzing trace with hash -1470838639, now seen corresponding path program 1 times [2024-11-17 03:21:31,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:21:31,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227642327] [2024-11-17 03:21:31,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:21:31,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:21:31,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:21:31,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:21:31,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:21:31,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227642327] [2024-11-17 03:21:31,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227642327] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:21:31,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:21:31,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 03:21:31,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909694291] [2024-11-17 03:21:31,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:21:31,896 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 03:21:31,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:21:31,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 03:21:31,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 03:21:31,897 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 50 [2024-11-17 03:21:31,898 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 40 transitions, 90 flow. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:21:31,898 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:21:31,898 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 50 [2024-11-17 03:21:31,898 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:21:33,969 INFO L124 PetriNetUnfolderBase]: 22345/32317 cut-off events. [2024-11-17 03:21:33,969 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 03:21:34,059 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62769 conditions, 32317 events. 22345/32317 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1158. Compared 212050 event pairs, 2463 based on Foata normal form. 900/33174 useless extension candidates. Maximal degree in co-relation 62763. Up to 18721 conditions per place. [2024-11-17 03:21:34,190 INFO L140 encePairwiseOnDemand]: 43/50 looper letters, 66 selfloop transitions, 6 changer transitions 1/80 dead transitions. [2024-11-17 03:21:34,191 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 80 transitions, 322 flow [2024-11-17 03:21:34,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 03:21:34,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 03:21:34,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 123 transitions. [2024-11-17 03:21:34,194 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.615 [2024-11-17 03:21:34,195 INFO L175 Difference]: Start difference. First operand has 52 places, 40 transitions, 90 flow. Second operand 4 states and 123 transitions. [2024-11-17 03:21:34,195 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 80 transitions, 322 flow [2024-11-17 03:21:34,196 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 80 transitions, 321 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 03:21:34,198 INFO L231 Difference]: Finished difference. Result has 55 places, 44 transitions, 131 flow [2024-11-17 03:21:34,198 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=89, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=131, PETRI_PLACES=55, PETRI_TRANSITIONS=44} [2024-11-17 03:21:34,200 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, -1 predicate places. [2024-11-17 03:21:34,201 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 44 transitions, 131 flow [2024-11-17 03:21:34,201 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:21:34,201 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:21:34,202 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:21:34,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-17 03:21:34,203 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-17 03:21:34,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:21:34,205 INFO L85 PathProgramCache]: Analyzing trace with hash -1083003455, now seen corresponding path program 1 times [2024-11-17 03:21:34,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:21:34,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231351758] [2024-11-17 03:21:34,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:21:34,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:21:34,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:21:34,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:21:34,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:21:34,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231351758] [2024-11-17 03:21:34,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231351758] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:21:34,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:21:34,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 03:21:34,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697917538] [2024-11-17 03:21:34,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:21:34,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 03:21:34,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:21:34,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 03:21:34,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-17 03:21:34,432 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 50 [2024-11-17 03:21:34,434 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 44 transitions, 131 flow. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:21:34,434 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:21:34,434 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 50 [2024-11-17 03:21:34,434 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:21:35,857 INFO L124 PetriNetUnfolderBase]: 15049/21853 cut-off events. [2024-11-17 03:21:35,858 INFO L125 PetriNetUnfolderBase]: For 4288/4288 co-relation queries the response was YES. [2024-11-17 03:21:35,902 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48864 conditions, 21853 events. 15049/21853 cut-off events. For 4288/4288 co-relation queries the response was YES. Maximal size of possible extension queue 666. Compared 134484 event pairs, 1337 based on Foata normal form. 756/22566 useless extension candidates. Maximal degree in co-relation 48855. Up to 9649 conditions per place. [2024-11-17 03:21:35,975 INFO L140 encePairwiseOnDemand]: 43/50 looper letters, 85 selfloop transitions, 10 changer transitions 1/103 dead transitions. [2024-11-17 03:21:35,975 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 103 transitions, 470 flow [2024-11-17 03:21:35,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 03:21:35,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-17 03:21:35,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 158 transitions. [2024-11-17 03:21:35,977 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.632 [2024-11-17 03:21:35,978 INFO L175 Difference]: Start difference. First operand has 55 places, 44 transitions, 131 flow. Second operand 5 states and 158 transitions. [2024-11-17 03:21:35,978 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 103 transitions, 470 flow [2024-11-17 03:21:35,987 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 103 transitions, 459 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-17 03:21:35,989 INFO L231 Difference]: Finished difference. Result has 59 places, 48 transitions, 183 flow [2024-11-17 03:21:35,989 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=183, PETRI_PLACES=59, PETRI_TRANSITIONS=48} [2024-11-17 03:21:35,990 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 3 predicate places. [2024-11-17 03:21:35,990 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 48 transitions, 183 flow [2024-11-17 03:21:35,993 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:21:35,993 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:21:35,993 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:21:35,994 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-17 03:21:35,994 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-17 03:21:35,994 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:21:35,994 INFO L85 PathProgramCache]: Analyzing trace with hash -749962601, now seen corresponding path program 1 times [2024-11-17 03:21:35,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:21:35,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197354190] [2024-11-17 03:21:35,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:21:35,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:21:36,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:21:36,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:21:36,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:21:36,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197354190] [2024-11-17 03:21:36,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197354190] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:21:36,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:21:36,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 03:21:36,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675990621] [2024-11-17 03:21:36,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:21:36,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 03:21:36,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:21:36,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 03:21:36,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-17 03:21:36,151 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 50 [2024-11-17 03:21:36,151 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 48 transitions, 183 flow. Second operand has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:21:36,151 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:21:36,151 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 50 [2024-11-17 03:21:36,151 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:21:37,075 INFO L124 PetriNetUnfolderBase]: 8909/12749 cut-off events. [2024-11-17 03:21:37,076 INFO L125 PetriNetUnfolderBase]: For 7906/7906 co-relation queries the response was YES. [2024-11-17 03:21:37,113 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31714 conditions, 12749 events. 8909/12749 cut-off events. For 7906/7906 co-relation queries the response was YES. Maximal size of possible extension queue 359. Compared 69005 event pairs, 1091 based on Foata normal form. 420/13126 useless extension candidates. Maximal degree in co-relation 31703. Up to 3644 conditions per place. [2024-11-17 03:21:37,163 INFO L140 encePairwiseOnDemand]: 43/50 looper letters, 102 selfloop transitions, 14 changer transitions 1/124 dead transitions. [2024-11-17 03:21:37,163 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 124 transitions, 617 flow [2024-11-17 03:21:37,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 03:21:37,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-17 03:21:37,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 191 transitions. [2024-11-17 03:21:37,166 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6366666666666667 [2024-11-17 03:21:37,166 INFO L175 Difference]: Start difference. First operand has 59 places, 48 transitions, 183 flow. Second operand 6 states and 191 transitions. [2024-11-17 03:21:37,166 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 124 transitions, 617 flow [2024-11-17 03:21:37,245 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 124 transitions, 587 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-17 03:21:37,247 INFO L231 Difference]: Finished difference. Result has 62 places, 52 transitions, 233 flow [2024-11-17 03:21:37,248 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=233, PETRI_PLACES=62, PETRI_TRANSITIONS=52} [2024-11-17 03:21:37,248 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 6 predicate places. [2024-11-17 03:21:37,249 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 52 transitions, 233 flow [2024-11-17 03:21:37,249 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:21:37,249 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:21:37,249 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:21:37,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-17 03:21:37,250 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-17 03:21:37,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:21:37,250 INFO L85 PathProgramCache]: Analyzing trace with hash 666837643, now seen corresponding path program 1 times [2024-11-17 03:21:37,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:21:37,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81577749] [2024-11-17 03:21:37,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:21:37,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:21:37,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:21:37,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:21:37,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:21:37,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81577749] [2024-11-17 03:21:37,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81577749] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:21:37,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:21:37,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-17 03:21:37,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171119276] [2024-11-17 03:21:37,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:21:37,443 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-17 03:21:37,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:21:37,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-17 03:21:37,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-17 03:21:37,445 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 50 [2024-11-17 03:21:37,446 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 52 transitions, 233 flow. Second operand has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 7 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:21:37,446 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:21:37,447 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 50 [2024-11-17 03:21:37,447 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:21:37,997 INFO L124 PetriNetUnfolderBase]: 6465/9005 cut-off events. [2024-11-17 03:21:37,998 INFO L125 PetriNetUnfolderBase]: For 7870/7870 co-relation queries the response was YES. [2024-11-17 03:21:38,015 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23755 conditions, 9005 events. 6465/9005 cut-off events. For 7870/7870 co-relation queries the response was YES. Maximal size of possible extension queue 329. Compared 45285 event pairs, 977 based on Foata normal form. 128/9090 useless extension candidates. Maximal degree in co-relation 23743. Up to 3076 conditions per place. [2024-11-17 03:21:38,049 INFO L140 encePairwiseOnDemand]: 43/50 looper letters, 89 selfloop transitions, 18 changer transitions 1/115 dead transitions. [2024-11-17 03:21:38,049 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 115 transitions, 591 flow [2024-11-17 03:21:38,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-17 03:21:38,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-17 03:21:38,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 194 transitions. [2024-11-17 03:21:38,051 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5542857142857143 [2024-11-17 03:21:38,052 INFO L175 Difference]: Start difference. First operand has 62 places, 52 transitions, 233 flow. Second operand 7 states and 194 transitions. [2024-11-17 03:21:38,052 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 115 transitions, 591 flow [2024-11-17 03:21:38,166 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 115 transitions, 545 flow, removed 9 selfloop flow, removed 5 redundant places. [2024-11-17 03:21:38,168 INFO L231 Difference]: Finished difference. Result has 65 places, 52 transitions, 243 flow [2024-11-17 03:21:38,168 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=243, PETRI_PLACES=65, PETRI_TRANSITIONS=52} [2024-11-17 03:21:38,169 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 9 predicate places. [2024-11-17 03:21:38,169 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 52 transitions, 243 flow [2024-11-17 03:21:38,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 7 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:21:38,170 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:21:38,170 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:21:38,170 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-17 03:21:38,170 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-17 03:21:38,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:21:38,171 INFO L85 PathProgramCache]: Analyzing trace with hash -8896346, now seen corresponding path program 1 times [2024-11-17 03:21:38,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:21:38,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931624768] [2024-11-17 03:21:38,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:21:38,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:21:38,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:21:38,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:21:38,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:21:38,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931624768] [2024-11-17 03:21:38,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931624768] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:21:38,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:21:38,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-17 03:21:38,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30099112] [2024-11-17 03:21:38,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:21:38,378 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-17 03:21:38,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:21:38,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-17 03:21:38,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-17 03:21:38,384 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 50 [2024-11-17 03:21:38,385 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 52 transitions, 243 flow. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:21:38,385 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:21:38,385 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 50 [2024-11-17 03:21:38,385 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:21:39,602 INFO L124 PetriNetUnfolderBase]: 13081/18204 cut-off events. [2024-11-17 03:21:39,603 INFO L125 PetriNetUnfolderBase]: For 16588/16588 co-relation queries the response was YES. [2024-11-17 03:21:39,687 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48719 conditions, 18204 events. 13081/18204 cut-off events. For 16588/16588 co-relation queries the response was YES. Maximal size of possible extension queue 672. Compared 99973 event pairs, 1104 based on Foata normal form. 32/18229 useless extension candidates. Maximal degree in co-relation 48706. Up to 6692 conditions per place. [2024-11-17 03:21:39,723 INFO L140 encePairwiseOnDemand]: 40/50 looper letters, 101 selfloop transitions, 10 changer transitions 77/195 dead transitions. [2024-11-17 03:21:39,723 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 195 transitions, 1283 flow [2024-11-17 03:21:39,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-17 03:21:39,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-17 03:21:39,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 262 transitions. [2024-11-17 03:21:39,725 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.524 [2024-11-17 03:21:39,725 INFO L175 Difference]: Start difference. First operand has 65 places, 52 transitions, 243 flow. Second operand 10 states and 262 transitions. [2024-11-17 03:21:39,725 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 195 transitions, 1283 flow [2024-11-17 03:21:39,962 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 195 transitions, 929 flow, removed 51 selfloop flow, removed 10 redundant places. [2024-11-17 03:21:39,964 INFO L231 Difference]: Finished difference. Result has 72 places, 59 transitions, 224 flow [2024-11-17 03:21:39,964 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=147, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=224, PETRI_PLACES=72, PETRI_TRANSITIONS=59} [2024-11-17 03:21:39,965 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 16 predicate places. [2024-11-17 03:21:39,965 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 59 transitions, 224 flow [2024-11-17 03:21:39,966 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:21:39,966 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:21:39,966 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:21:39,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-17 03:21:39,966 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-17 03:21:39,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:21:39,967 INFO L85 PathProgramCache]: Analyzing trace with hash 1697470884, now seen corresponding path program 2 times [2024-11-17 03:21:39,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:21:39,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106003438] [2024-11-17 03:21:39,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:21:39,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:21:39,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:21:40,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:21:40,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:21:40,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106003438] [2024-11-17 03:21:40,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106003438] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:21:40,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:21:40,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-17 03:21:40,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407729049] [2024-11-17 03:21:40,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:21:40,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-17 03:21:40,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:21:40,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-17 03:21:40,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-17 03:21:40,193 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 50 [2024-11-17 03:21:40,194 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 59 transitions, 224 flow. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:21:40,194 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:21:40,194 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 50 [2024-11-17 03:21:40,195 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:21:41,379 INFO L124 PetriNetUnfolderBase]: 15165/21467 cut-off events. [2024-11-17 03:21:41,380 INFO L125 PetriNetUnfolderBase]: For 11548/11568 co-relation queries the response was YES. [2024-11-17 03:21:41,481 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54671 conditions, 21467 events. 15165/21467 cut-off events. For 11548/11568 co-relation queries the response was YES. Maximal size of possible extension queue 860. Compared 124712 event pairs, 3449 based on Foata normal form. 28/21440 useless extension candidates. Maximal degree in co-relation 54655. Up to 11384 conditions per place. [2024-11-17 03:21:41,513 INFO L140 encePairwiseOnDemand]: 42/50 looper letters, 69 selfloop transitions, 8 changer transitions 73/157 dead transitions. [2024-11-17 03:21:41,514 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 157 transitions, 879 flow [2024-11-17 03:21:41,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-17 03:21:41,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-17 03:21:41,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 184 transitions. [2024-11-17 03:21:41,515 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5257142857142857 [2024-11-17 03:21:41,515 INFO L175 Difference]: Start difference. First operand has 72 places, 59 transitions, 224 flow. Second operand 7 states and 184 transitions. [2024-11-17 03:21:41,515 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 157 transitions, 879 flow [2024-11-17 03:21:41,525 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 157 transitions, 863 flow, removed 8 selfloop flow, removed 5 redundant places. [2024-11-17 03:21:41,527 INFO L231 Difference]: Finished difference. Result has 72 places, 60 transitions, 254 flow [2024-11-17 03:21:41,527 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=254, PETRI_PLACES=72, PETRI_TRANSITIONS=60} [2024-11-17 03:21:41,528 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 16 predicate places. [2024-11-17 03:21:41,528 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 60 transitions, 254 flow [2024-11-17 03:21:41,529 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:21:41,529 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:21:41,529 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:21:41,529 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-17 03:21:41,529 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-17 03:21:41,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:21:41,530 INFO L85 PathProgramCache]: Analyzing trace with hash -1496869744, now seen corresponding path program 3 times [2024-11-17 03:21:41,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:21:41,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501975869] [2024-11-17 03:21:41,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:21:41,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:21:41,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:21:41,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:21:41,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:21:41,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501975869] [2024-11-17 03:21:41,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501975869] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:21:41,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:21:41,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-17 03:21:41,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743004183] [2024-11-17 03:21:41,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:21:41,726 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-17 03:21:41,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:21:41,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-17 03:21:41,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-17 03:21:41,734 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 50 [2024-11-17 03:21:41,734 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 60 transitions, 254 flow. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:21:41,735 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:21:41,735 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 50 [2024-11-17 03:21:41,735 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:21:42,842 INFO L124 PetriNetUnfolderBase]: 11127/15880 cut-off events. [2024-11-17 03:21:42,842 INFO L125 PetriNetUnfolderBase]: For 8154/8154 co-relation queries the response was YES. [2024-11-17 03:21:42,930 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39401 conditions, 15880 events. 11127/15880 cut-off events. For 8154/8154 co-relation queries the response was YES. Maximal size of possible extension queue 655. Compared 88401 event pairs, 3184 based on Foata normal form. 48/15927 useless extension candidates. Maximal degree in co-relation 39384. Up to 5264 conditions per place. [2024-11-17 03:21:42,954 INFO L140 encePairwiseOnDemand]: 42/50 looper letters, 50 selfloop transitions, 4 changer transitions 125/186 dead transitions. [2024-11-17 03:21:42,954 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 186 transitions, 1008 flow [2024-11-17 03:21:42,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-17 03:21:42,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-17 03:21:42,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 276 transitions. [2024-11-17 03:21:42,956 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.46 [2024-11-17 03:21:42,956 INFO L175 Difference]: Start difference. First operand has 72 places, 60 transitions, 254 flow. Second operand 12 states and 276 transitions. [2024-11-17 03:21:42,956 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 186 transitions, 1008 flow [2024-11-17 03:21:42,963 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 186 transitions, 975 flow, removed 14 selfloop flow, removed 3 redundant places. [2024-11-17 03:21:42,964 INFO L231 Difference]: Finished difference. Result has 86 places, 52 transitions, 210 flow [2024-11-17 03:21:42,965 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=239, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=210, PETRI_PLACES=86, PETRI_TRANSITIONS=52} [2024-11-17 03:21:42,966 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 30 predicate places. [2024-11-17 03:21:42,966 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 52 transitions, 210 flow [2024-11-17 03:21:42,966 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:21:42,966 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:21:42,967 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:21:42,967 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-17 03:21:42,967 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-17 03:21:42,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:21:42,968 INFO L85 PathProgramCache]: Analyzing trace with hash -25164458, now seen corresponding path program 4 times [2024-11-17 03:21:42,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:21:42,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526311021] [2024-11-17 03:21:42,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:21:42,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:21:42,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:21:43,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:21:43,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:21:43,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526311021] [2024-11-17 03:21:43,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526311021] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:21:43,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:21:43,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-17 03:21:43,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507142104] [2024-11-17 03:21:43,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:21:43,136 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-17 03:21:43,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:21:43,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-17 03:21:43,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-17 03:21:43,143 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 50 [2024-11-17 03:21:43,144 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 52 transitions, 210 flow. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:21:43,144 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:21:43,144 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 50 [2024-11-17 03:21:43,144 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:21:43,454 INFO L124 PetriNetUnfolderBase]: 2595/3701 cut-off events. [2024-11-17 03:21:43,455 INFO L125 PetriNetUnfolderBase]: For 2278/2280 co-relation queries the response was YES. [2024-11-17 03:21:43,463 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9206 conditions, 3701 events. 2595/3701 cut-off events. For 2278/2280 co-relation queries the response was YES. Maximal size of possible extension queue 161. Compared 16033 event pairs, 447 based on Foata normal form. 16/3717 useless extension candidates. Maximal degree in co-relation 9188. Up to 2988 conditions per place. [2024-11-17 03:21:43,466 INFO L140 encePairwiseOnDemand]: 45/50 looper letters, 0 selfloop transitions, 0 changer transitions 76/76 dead transitions. [2024-11-17 03:21:43,466 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 76 transitions, 420 flow [2024-11-17 03:21:43,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 03:21:43,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-17 03:21:43,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 126 transitions. [2024-11-17 03:21:43,467 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.42 [2024-11-17 03:21:43,467 INFO L175 Difference]: Start difference. First operand has 86 places, 52 transitions, 210 flow. Second operand 6 states and 126 transitions. [2024-11-17 03:21:43,468 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 76 transitions, 420 flow [2024-11-17 03:21:43,470 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 76 transitions, 379 flow, removed 11 selfloop flow, removed 13 redundant places. [2024-11-17 03:21:43,470 INFO L231 Difference]: Finished difference. Result has 66 places, 0 transitions, 0 flow [2024-11-17 03:21:43,470 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=66, PETRI_TRANSITIONS=0} [2024-11-17 03:21:43,471 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 10 predicate places. [2024-11-17 03:21:43,471 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 0 transitions, 0 flow [2024-11-17 03:21:43,472 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:21:43,474 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (5 of 6 remaining) [2024-11-17 03:21:43,474 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (4 of 6 remaining) [2024-11-17 03:21:43,475 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 6 remaining) [2024-11-17 03:21:43,475 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2024-11-17 03:21:43,475 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2024-11-17 03:21:43,475 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 6 remaining) [2024-11-17 03:21:43,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-17 03:21:43,476 INFO L407 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1, 1, 1] [2024-11-17 03:21:43,479 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-17 03:21:43,479 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-17 03:21:43,484 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.11 03:21:43 BasicIcfg [2024-11-17 03:21:43,484 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-17 03:21:43,485 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-17 03:21:43,485 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-17 03:21:43,485 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-17 03:21:43,485 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 03:21:27" (3/4) ... [2024-11-17 03:21:43,487 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-17 03:21:43,490 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure P0 [2024-11-17 03:21:43,490 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure P1 [2024-11-17 03:21:43,490 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure P2 [2024-11-17 03:21:43,490 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure P3 [2024-11-17 03:21:43,494 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 34 nodes and edges [2024-11-17 03:21:43,494 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-11-17 03:21:43,494 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-17 03:21:43,494 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-17 03:21:43,588 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-17 03:21:43,589 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-17 03:21:43,589 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-17 03:21:43,590 INFO L158 Benchmark]: Toolchain (without parser) took 17326.59ms. Allocated memory was 134.2MB in the beginning and 6.8GB in the end (delta: 6.7GB). Free memory was 63.7MB in the beginning and 4.2GB in the end (delta: -4.1GB). Peak memory consumption was 2.6GB. Max. memory is 16.1GB. [2024-11-17 03:21:43,590 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 134.2MB. Free memory is still 97.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 03:21:43,590 INFO L158 Benchmark]: CACSL2BoogieTranslator took 637.67ms. Allocated memory was 134.2MB in the beginning and 188.7MB in the end (delta: 54.5MB). Free memory was 63.4MB in the beginning and 153.7MB in the end (delta: -90.3MB). Peak memory consumption was 33.4MB. Max. memory is 16.1GB. [2024-11-17 03:21:43,591 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.88ms. Allocated memory is still 188.7MB. Free memory was 153.7MB in the beginning and 151.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 03:21:43,591 INFO L158 Benchmark]: Boogie Preprocessor took 63.82ms. Allocated memory is still 188.7MB. Free memory was 151.6MB in the beginning and 149.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 03:21:43,591 INFO L158 Benchmark]: IcfgBuilder took 493.81ms. Allocated memory is still 188.7MB. Free memory was 148.5MB in the beginning and 126.4MB in the end (delta: 22.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-17 03:21:43,592 INFO L158 Benchmark]: TraceAbstraction took 15972.98ms. Allocated memory was 188.7MB in the beginning and 6.8GB in the end (delta: 6.7GB). Free memory was 125.4MB in the beginning and 4.2GB in the end (delta: -4.1GB). Peak memory consumption was 2.6GB. Max. memory is 16.1GB. [2024-11-17 03:21:43,592 INFO L158 Benchmark]: Witness Printer took 104.37ms. Allocated memory is still 6.8GB. Free memory was 4.2GB in the beginning and 4.2GB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-17 03:21:43,594 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 134.2MB. Free memory is still 97.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 637.67ms. Allocated memory was 134.2MB in the beginning and 188.7MB in the end (delta: 54.5MB). Free memory was 63.4MB in the beginning and 153.7MB in the end (delta: -90.3MB). Peak memory consumption was 33.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.88ms. Allocated memory is still 188.7MB. Free memory was 153.7MB in the beginning and 151.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 63.82ms. Allocated memory is still 188.7MB. Free memory was 151.6MB in the beginning and 149.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 493.81ms. Allocated memory is still 188.7MB. Free memory was 148.5MB in the beginning and 126.4MB in the end (delta: 22.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 15972.98ms. Allocated memory was 188.7MB in the beginning and 6.8GB in the end (delta: 6.7GB). Free memory was 125.4MB in the beginning and 4.2GB in the end (delta: -4.1GB). Peak memory consumption was 2.6GB. Max. memory is 16.1GB. * Witness Printer took 104.37ms. Allocated memory is still 6.8GB. Free memory was 4.2GB in the beginning and 4.2GB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 786]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 17]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 79 locations, 6 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 15.8s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 13.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 849 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 840 mSDsluCounter, 40 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 35 mSDsCounter, 32 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1651 IncrementalHoareTripleChecker+Invalid, 1683 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 32 mSolverCounterUnsat, 5 mSDtfsCounter, 1651 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 75 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=254occurred in iteration=7, InterpolantAutomatonStates: 60, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 250 NumberOfCodeBlocks, 250 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 241 ConstructedInterpolants, 0 QuantifiedInterpolants, 1221 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-17 03:21:43,625 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE